It’s the same for those island hopping tours in Phuket and Krabi. It should only cost you 850-1000฿ but I’ve heard of people paying over 3000-4000 baht. And learned people accept the taxi driver telling them 300 baht to go 2 kilometres. lol it’s like most taxi drivers can only speak 4 English lines “hello” “thank you” “have a nice day” “300 baht”